Explain projection printing, Chemical Engineering

Assignment Help:

Projection Printing

Projection printing, keep away from mask damage entirely. An image of the patterns on the mask is projected onto the resist-coated wafer, which are many centimetres away. In order to achieve high resolution, only a small portion of the mask is imaged. This small image field is scanned or stepped above the surface of the wafer. Projection printers that step the mask image over the wafer surface are known as step-and-repeat systems. Step-and-repeat projection printers are able of approximately 1-micron resolution.  

 


Related Discussions:- Explain projection printing

Explain positive and negative photo resist, Positive and Negative Photo res...

Positive and Negative Photo resist There are two types of photo resist: positive and negative. For positive resists, the resist is exposed with UV light where the underlying ma

¿, miunuman t Boston party

miunuman t Boston party

Reaction between chloride ion and a primary carbocation, Which one of the  ...

Which one of the  following  statements  about  product  A is correct? It arose from a reaction between chloride ion and a primary carbocation It arose from a reaction

Quick vinagar process.., how long time required to make vinegar by vinagar ...

how long time required to make vinegar by vinagar process

Loci.., how 2 construct a loci?

how 2 construct a loci?

Water, what is break point on chlorination

what is break point on chlorination

Process description for production of chemicals from coal, Process Descript...

Process Description For Production of Chemicals from Coal Before it can be fed to the gasification reactor, coal must be ground to meet specifications on particle size. The gr

PROCESS CONTROL, HOW CAN I BE ABLE TO CONTROL AND BALANCE THE INPUT AND OUT...

HOW CAN I BE ABLE TO CONTROL AND BALANCE THE INPUT AND OUT-PUT

Catalysis, Auto catalysis & induced catalysis

Auto catalysis & induced catalysis

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd